Russia's Nadia Petrova returns the ball to USA's Venus Williams during their fourth round match for the French Open tennis tournament at the Roland Garros stadium in Paris, Sunday, May 30, 2010. (Michel Spingler)

(Newser)
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Venus Williams' celebrated corset went under wraps today, reports the AP, and now it's out of the French Open. Playing with a long-sleeve top over her black lace outfit on a chilly afternoon, Williams lost in the fourth round to Nadia Petrova, 6-4, 6-3. Williams came into the tournament seeded No. 2 behind her sister Serena, but Petrova spoiled the possibility of a sibling showdown in the final.

Petrova has been a nemesis for the Williams family lately—she beat Serena in the third round at Madrid less than three weeks ago. She controlled rallies with steady play from the baseline and finished strong, a problem for her in the past. Venus converted only one of seven break-point chances. In the second set she lost serve three times after taking a 2-love lead. Petrova, seeded 19th, is a two-time semifinalist, but she's into the quarterfinals for the first time since 2005. The victory was her first against Williams in their five meetings.

Belgium's Justine Henin jubilates after defeating Russia's Maria Sharapova during their third round match for the French Open tennis tournament at the Roland Garros stadium in Paris, Sunday, May 30, 2010.... (Michel Spingler)

Belgium's Justine Henin returns the ball to Russia's Maria Sharapova during their third round match for the French Open tennis tournament at the Roland Garros stadium in Paris, Saturday May 29, 2010,... (Michel Spingler)

Belgium's Justine Henin returns the ball to Russia's Maria Sharapova during their third round match for the French Open tennis tournament at the Roland Garros stadium in Paris, Sunday, May 30, 2010. (Michel Spingler)

Belgium's Justine Henin jubilates after defeating Russia's Maria Sharapova during their third round match for the French Open tennis tournament at the Roland Garros stadium in Paris, Sunday, May 30, 2010.... (Michel Spingler)

USA's Venus Williams serves the ball to Russia's Nadia Petrova during their fourth round match for the French Open tennis tournament at the Roland Garros stadium in Paris, Sunday, May 30, 2010. (Michel Spingler)

Belgium's Justine Henin returns the ball to Russia's Maria Sharapova returns the ball to during their third round match for the French Open tennis tournament at the Roland Garros stadium in Paris, Saturday,... (Christophe Ena)

Russia's Maria Sharapova returns the ball to Belgium's Justine Henin during their third round match for the French Open tennis tournament at the Roland Garros stadium in Paris, Saturday, May 29, 2010.... (Christophe Ena)

Russia's Maria Sharapova serves the ball to Belgium's Justine Henin during their third round match for the French Open tennis tournament at the Roland Garros stadium in Paris, Saturday May 29, 2010,... (Michel Spingler)

Belgium's Justine Henin reacts shortly before defeating Russia's Maria Sharapova during their third round match of the French Open tennis tournament at the Roland Garros stadium in Paris, Sunday, May... (Michel Euler)

Russia's Maria Sharapova returns the ball to Belgium's Justine Henin during their third round match for the French Open tennis tournament at the Roland Garros stadium in Paris, Sunday, May 30, 2010. (Michel Spingler)

Russia's Nadia Petrova returns the ball to USA's Venus Williams during their fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, Sunday, May 30, 2010. (Michel Euler)

Venus Williams run after the ball against Russia's Nadia Petrova during their fourth round match for the French Open tennis tournament at the Roland Garros stadium in Paris, Sunday, May 30, 2010. (Michel Spingler)

USA's Venus Williams reacts as she plays Russia's Nadia Petrova during their fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, Sunday, May 30, 2010. (Michel Euler)

Venus Williams returns the ball to Nadia Petrova during their fourth round match for the French Open at Roland Garros stadium in Paris, Sunday, May 30, 2010. (AP Photo/Michel Spingler)

Venus Williams reacts as she plays Nadia Petrova during their fourth round match of the French Open at Roland Garros stadium in Paris, Sunday, May 30, 2010. (AP Photo/Michel Euler)

Venus Williams returns the ball to Nadia Petrova during their fourth round match of the French Open at Roland Garros stadium in Paris, Sunday, May 30, 2010. (AP Photo/Michel Euler)